Yep, that's the one. I could have found it if we still had the "my posts" option. I wonder why it was removed? I wonder if we can now PM people? It always looked like an option but was disabled. I would like to make up my own mind as to whether I would like to be PM'd or not.
As per above, you can still search for "my posts" by entering "plantsower" in "By Display Name."
Private messaging is still disabled for all but moderators and more exalted.